SHIYOU
SHIYOU
SHIYOU

Key words

Breaking Hammer Series Drilling Rod / Top Type Series Drill Rod / Side Series Drilling Rod / Box Series Drilling Rod

SHIYOU Hydraulic Machinery

20 years of focus on hydraulic machinery solutions

Jiangyin Shiyou Hydraulic Machinery Co., Ltd. was established in 2003. The company covers an area of 18,000 square meters. The company's main business: Production of hydraulic breaker hammer chisels / rods, front covers & thrust bushes and bracket. Distribution of all accessories for excavators and breakers.

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PRODUCTS

Possess ISO9001-2015 quality management system (QMS)

Breaking Hammer Series Drilling Rod

Breaker Products

Breaker Spare Parts

Material Objects

Collaboration Products

Breaking Hammer Series Drilling Rod

Breaking Hammer Series Drilling Rod

Hammer manufacturer: Atlas Copco / Kwanglim / Daemo / N.P.K / Caterpillar / Drago / Furukawa / Hanwoo(Rhino) / Indeco / Komatsu / Komac / Krupp / Montabert / MSB / 0kada / Rammer / Sandvik / Soosan / Stanley / Toku / Toyo / Volvo

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Breaking Hammer Series Drilling Rod

Breaking Hammer Series Drilling Rod

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Breaker Products

Breaker Products

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Breaker Spare Parts

Breaker Spare Parts

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Material Objects

Material Objects

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Collaboration Products

Collaboration Products

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Process Introduction

Adopt the sectional type quench to make chisel wearable and not broken off easliy

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Special Alloy Steel

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Special Heat Treatment Method

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Special Smithing Technics

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Special Performance and Price Ratio

EQUIPMENT

We own advanced productiontechnology and equipment

SERVICE

01

Drill Rod Warranty and Instructions

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02

Quality Problem is Damaged

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03

Crackreason of Chisel and Piston

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04

Warranty Guide for Broken Part's Shape

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News · Exhibition

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Company News Industry News
Requirements for the use of hydraulic oil by the breaker

Requirements for the use of hydraulic oil by the breaker

The hydraulic oil with the same viscosity label is also very different. Visco-temperature refers to the change of oil viscosity with temperature rise and fall, usually expressed by viscosity index (VI). The larger the viscosity index is, the viscosity of the working oil will also change with the temperature change, and the leakage in the system will not be too large. The operating conditions of the breaker are generally harsh. During the entire operation period, the system oil temperature changes with the load and ambient temperature, so the viscosity index should be ≥90. Good viscosity-temperature characteristics help reduce cold-start problems. The viscosity index has a great relationship with the grade of the base oil. Some base oils have high viscosity index when no additives are used. Adding a viscosity index improver can improve the viscosity and temperature. properties, but viscosity index improvers may fail under high shear conditions, as the molecules are sheared off.

2022/07/04

Requirements for the use of hydraulic oil by the breaker

The hydraulic oil with the same viscosity label is also very different. Visco-temperature refers to the change of oil viscosity with temperature rise and fall, usually expressed by viscosity index (VI). The larger the viscosity index is, the viscosity of the working oil will also change with the temperature change, and the leakage in the system will not be too large. The operating conditions of the breaker are generally harsh. During the entire operation period, the system oil temperature changes with the load and ambient temperature, so the viscosity index should be ≥90. Good viscosity-temperature characteristics help reduce cold-start problems. The viscosity index has a great relationship with the grade of the base oil. Some base oils have high viscosity index when no additives are used. Adding a viscosity index improver can improve the viscosity and temperature. properties, but viscosity index improvers may fail under high shear conditions, as the molecules are sheared off.

How to protect the hydraulic pump of the breaker?

1. Use high-quality breakers with accumulators. Poor-quality breakers are prone to problems due to design, manufacturing, inspection and other links, and the failure rate in use is high, which is more likely to cause damage to the excavator. 2. The hydraulic system should be preheated before the breaker is used. When the breaker is parked, the hydraulic oil in the upper part will flow to the lower part. After the oil film is formed, use the medium throttle to operate, which can protect the hydraulic system of the excavator. 3. Air hitting will not only cause the oil temperature to rise, but also cause abnormal vibrations to cause impurities to enter the rigid body of the breaker, so air hitting is strictly prohibited. 4. Be sure to add lubricating grease when the steel is brazing straight, and refill it every 2 hours. If the lubricating oil is supplemented in the suspended state of the steel rod, the grease will enter the striking chamber, and abnormal high pressure oil will be generated in the striking chamber during striking, which will enter the hydraulic system and damage the hydraulic pump.

What are the effects of oil pressure on the breaker

The breaker is an auxiliary equipment for many construction machinery. Now many projects have more and more demands for modern machinery and equipment. The breaker needs suitable oil pressure to work normally. Many friends must know this, but the oil pressure is in the end. How much should be appropriate, and what are the effects of oil pressure on the breaker? Oil pressure measurement According to the design pressure parameters, install an oil pressure gauge greater than the design pressure in the corresponding position. For the new excavator with a breaker, it is generally between 200-220, and for the old excavator, it is generally above 230 . If the oil pressure is too high in actual use, the load on the breaker may also increase, and the oil temperature will also rise. If the oil temperature is too high, the transmission pressure of the hydraulic oil will be insufficient, resulting in equipment failure. If it does not work properly, if it is not solved for a long time, it will damage the breaker accumulator, resulting in air leakage and oil leakage. Once we find that the oil temperature rises too high during use, we should consider replacing the oil cooler of the equipment, or install an auxiliary cooler to achieve our purpose. It is also very important to clean the oil filter in time. Pivotal.

Breaker oil pipe connection requirements

Before installation, it is necessary to protect the relevant accessories. For example, to prevent soil and dust from entering the oil pipeline, plug the hose with a plug, and plug the pipeline with an internal thread plug. To prevent dust pollution, the high-pressure pipe and the low-pressure pipe should be blocked Tie the tube with wire.

Breaker oil pipe connection requirements

Before installation, it is necessary to protect the relevant accessories. For example, to prevent soil and dust from entering the oil pipeline, plug the hose with a plug, and plug the pipeline with an internal thread plug. To prevent dust pollution, the high-pressure pipe and the low-pressure pipe should be blocked Tie the tube with wire.

Why add nitrogen to the breaker

There are two parts in the breaker that are related to nitrogen. The upper cylinder is responsible for storing low-pressure nitrogen, and the accumulator in the middle cylinder is responsible for making the nitrogen work. The accumulator is filled with nitrogen, and the hydraulic breaker is used to store the remaining energy and the recoil energy of the piston, and release the energy at the same time to increase the impact capacity. Usually, the accumulator is installed when the breaker itself cannot reach the impact energy to increase the impact force of the breaker. Once the amount of nitrogen gas is insufficient, the kinetic energy generated by its compression will also be weakened, and the phenomenon of the broken hammer will be weak. If too much nitrogen is added, the pressure in the accumulator is too high, and the hydraulic oil pressure is not enough to push the cylinder rod upward to compress nitrogen, the accumulator will not be able to store energy, and the breaker will not work. Therefore, if the nitrogen gas increases or decreases, the breaker will not work properly. When adding nitrogen, it is necessary to measure the pressure with a pressure gauge, so that the pressure of the accumulator can be controlled within the normal range, and a little adjustment can be made according to the actual working conditions, which can not only protect the parts, but also achieve good work efficiency.

Breaker Piston Maintenance

1. When using the breaker, it is necessary to avoid the problem of piston aging and oil leakage caused by the increase of temperature. During the construction break, we can make local adjustments, which can ensure the lubrication between the breaker piston and the drill rod. 2. Trial operation is required before crushing. Generally, the temperature is relatively low at the beginning of operation, the clearance of the piston cylinder liner is relatively small, and the low oil temperature does not exert the lubricating effect. Immediately after starting the engine, there will be problems when the engine runs at full load. 3. The breaker cannot be operated in water. Because there is no waterproof design, it will easily enter the sediment and cause certain blockages.

Breaker oil pipe connection requirements

Before installation, it is necessary to protect the relevant accessories. For example, to prevent soil and dust from entering the oil pipeline, plug the hose with a plug, and plug the pipeline with an internal thread plug. To prevent dust pollution, the high-pressure pipe and the low-pressure pipe should be blocked Tie the tube with wire.